Are we really not allowed to get a bikini wax while pregnant? My OB told me not to, but I don't understand why not...when other OBs are okay with it.

It's only because your skin may be more sensitive and itchy due to pregnancy hormones. There's extra blood flowing to the area and waxing will be even more painful. Some therapists do not provide waxing for women in their first trimester. I'd stay on the safe side and trim it myself. http://www.babycentre.co.uk/x557907/is-it-safe-to-have-a-bikini-or-leg-wax-in-pregnancy